Home / 1,070,037.20-1,605,128.70-340,502.60

Finding the Fourth Proportional to 1,070,037.20, 1,605,128.70 and 340,502.60

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Solution

The fourth proportional to 1,070,037.20, 1,605,128.70 and 340,502.60 is: 510,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,037.20 : 1,605,128.70 = 340,502.60 : x
  2. Step 2: Convert to fraction form
    1,070,037.20/1,605,128.70 = 340,502.60/x
  3. Step 3: Cross multiply
    1,070,037.20x = 1,605,128.70 × 340,502.60
  4. Step 4: Simplify right side
    1,070,037.20x = 546,550,495,684.62
  5. Step 5: Solve for x
    x = 546,550,495,684.62/1,070,037.20
  6. Step 6: Final answer
    x = 510,777.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.